WORKSPACE: update rules_python

fixes https://github.com/bazelbuild/rules_python/issues/489

Change-Id: I60a1577e168376b23a8daac5dc4d976713a4eaeb

WORKSPACE

@@ -18,11 +18,13 @@ load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
 
 protobuf_deps()
 
-# Force rules_python at a bleeding edge version (for pip3_import).
+# Force rules_python at a bleeding edge version (for setuptools >44).
+rules_python_version = "929d5a13d4eb1b930086d9353fc6f2d6ad306e43"
 http_archive(
     name = "rules_python",
-    url = "https://github.com/bazelbuild/rules_python/releases/download/0.0.3/rules_python-0.0.3.tar.gz",
-    sha256 = "e46612e9bb0dae8745de6a0643be69e8665a03f63163ac6610c210e80d14c3e4",
+    strip_prefix = "rules_python-{}".format(rules_python_version),
+    url = "https://github.com/bazelbuild/rules_python/archive/{}.zip".format(rules_python_version),
+    sha256 = "b590e4fc07ec842b8cc8a39a4ca0336f44d7d5f96753229d240884cd016dc1e3",
 )
 
 # Download Go/Gazelle rules
@@ -47,24 +49,17 @@ http_archive(
 # Python rules
 # Important: rules_python must be loaded before protobuf (and grpc) because they load an older version otherwise
 load("@rules_python//python:repositories.bzl", "py_repositories")
-
 py_repositories()
 
 load("@rules_python//python:pip.bzl", "pip_repositories")
-
 pip_repositories()
 
-load("@rules_python//python:pip.bzl", "pip3_import")
-
-pip3_import(
+load("@rules_python//python:pip.bzl", "pip_install")
+pip_install(
     name = "pydeps",
     requirements = "//third_party/py:requirements.txt",
 )
 
-load("@pydeps//:requirements.bzl", "pip_install")
-
-pip_install()
-
 # Setup Go toolchain.
 load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains")
 go_register_toolchains()